(Washington) (AP) – The Obama administration remains opposed to legislation that would add President Franklin Roosevelt’s D-Day prayer to the World War II Memorial in Washington D.C.

As U.S and allied troops launched the invasion that led to the defeat of Nazi Germany, FDR asked the nation to join him in prayer. He then asked God to give the allied troops courage and faith, saying, “With thy blessing we shall prevail over the unholy forces of our enemy.”

At a Senate hearing Wednesday, Ohio Republican Rob Portman said adding a plaque or inscription of the prayer Roosevelt read on a radio broadcast to the nation on June 6, 1944, would remind Americans of what they have in common.

But Stephanie Toothman, associate director of cultural relations for the National Parks Service, said it’s rare to allow additions to a completed memorial. She also suggested that adding a prayer to the World War II Memorial could attract a lawsuit.

Portman’s bill calls for the plaque or inscription to be paid for with private donations.